Signs of red diesel fuel contamination

Here at Compass Fuel Oils, we are leading red diesel providers. We work with businesses and industries across the UK, with reliable, high quality delivery options. So, for all your fuel needs, you can count on us. As a result, we have produced this guide to everything you should know about the common signs of red diesel fuel contamination.

What are the most common signs of red diesel fuel contamination?

There are a number of signs to look out for when it comes to your red diesel and potential fuel contamination within your storage tank. These signs include:

  • Fuel looks cloudy or dark
  • Vehicles and equipment are not performing

Visual clues that your red diesel is contaminated

If you are suspicious about the quality of your red diesel within the storage tank you can check initially for any visual clues. Red diesel that looks cloudy, lumpy, or dark is not in good condition. This could be caused by water entering the fuel tank, rust, or it could even be the result of temperatures too low for the red diesel to be stored in. Water within the fuel tank allows microbes to enter which can cause the fuel to become cloudy, while dark fuel may have asphaltenes forming, which can cause hard particles that clump and block filters. Either way, it may be possible to have this cleaned, or your red diesel may be unsalvageable.

Vehicles and equipment are not performing

One of the first signs that anything is wrong with your red diesel is when you notice a performance issue with your vehicle or machinery. At first you may think this is a problem with the machinery or vehicle itself, but if your red diesel has been contaminated, you may notice the issue across all of the equipment you use. Contaminated red diesel will not burn as it should, and can therefore cause a range of problems for vehicles including:

  • Blocked fuel filters
  • Struggling to start the engine
  • Erratic speed and dramatically reduced acceleration and RPM
  • Black, white or blue smoke- if the engine is working properly but you notice this, it could be a sign of contaminant in the fuel burning off.

How can red diesel contamination be prevented?

There are a number of ways to help prevent your red diesel from becoming contaminated. These include:

  • Using the right type of fuel tank- a good fuel tank is crucial for protecting your red diesel. This needs to keep out water, and any debris, and it needs to be free from rust and dirt itself.
  • Good fuel tank storage- its important to make sure that your red diesel fuel tank will not be stored anywhere that is too cold as this can cause paraffin crystals to be formed, which will prevent the smooth flow of oil, and smooth burning, leading to clogged filters and engine trouble.
  • Regularly checking the fuel tank- it is good practice to regularly check the fuel tank and the quality of the fuel because while this wont prevent contamination it will give you an early indication of a problem so that you can take action to prevent this from getting worse.

Working with a team like us here at Compass Fuel Oils, you could have your red diesel reliably delivered whenever you need it. And we only send out the right type of fuel, at the right time, so you don’t need to worry about seasonal oil. We offer the best prices, and flexible delivery tailored to suit your needs. So why not get in touch today?

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Frequently Asked Questions

Deliveries

  • What areas do you deliver to?

    We deliver to most regions in the UK. To check if we service your area, please use our delivery postcode checker or contact our support team 01772 619 461 

  • What is the minimum order quantity for delivery?

    The minimum order quantity varies depending on the fuel type. For most orders, it is 500 litres, but smaller deliveries may be available upon request for example barrels of 205l fuel.

  • How long does delivery take?

    Standard deliveries typically take 3–5 working days. We also offer express delivery options for urgent orders.

  • What should I do if my tank is overfilled or damaged during delivery?

    Please report any issues to our customer service team immediately. We will investigate and resolve the issue promptly.

  • Can I change or cancel my delivery?

    Yes, you can modify or cancel your delivery by contacting us at least 24 hours before the scheduled delivery time.

  • Do you charge a delivery fee?

    Standard delivery is included in the fuel price for most orders. Express deliveries or orders below the minimum quantity may incur additional fees.

  • What types of vehicles are used for delivery?

    We use a fleet of fuel tankers suitable for residential, commercial, and agricultural deliveries. For restricted access locations, we may send a smaller vehicle.

  • What if my delivery is delayed?

    While we strive to deliver on time, delays can occur due to weather or other unforeseen circumstances. If your delivery is delayed, we will notify you as soon as possible.

  • What should I do to prepare for a delivery?

    Ensure your tank is easily accessible, remove any obstructions, and secure pets or gates. If your tank has a lock, please make sure it is unlocked.

  • How will I know when my delivery will arrive?

    You will receive a notification with an estimated delivery date once your order is confirmed. On the day of delivery, our driver may contact you directly.

  • Do I need to be present during the delivery?

    In most cases, you don’t need to be present as long as your tank is accessible and ready for filling.

  • What happens if I’m not available during the delivery?

    If you’re not available, our driver can deliver the fuel to your tank as long as it is accessible and safe to do so. If access is restricted, we will contact you to reschedule.

  • Can I schedule my delivery?

    Absolutely. You can choose a preferred delivery date during the order process. We’ll do our best to accommodate your request.

  • Do you offer same-day or next-day delivery?

    Yes, same-day and next-day delivery options are available in select areas. Additional charges may apply.

Payments

  • What currency are payments processed in?

    Payments are processed in GBP (British Pounds). If you are paying from outside the UK, your bank may apply conversion fees.

  • Is my payment information secure?

    Absolutely. We use industry-standard encryption and secure payment gateways to protect your payment details.

  • Can I request an extension on my payment due date?

    Yes, payment extensions may be available upon request. Please contact our billing team to discuss options.

  • Do you offer refunds?

    Refunds are processed in accordance with our refund policy. Please contact our support team for further assistance.

  • How can I update my payment details?

    You can update your payment details by contacting our customer service team. 

  • Can I split my payment across multiple methods?

    Unfortunately, we do not support splitting payments across multiple methods at this time.

  • What should I do if my payment is declined?

    If your payment is declined, double-check your payment details and try again. If the issue persists, contact your bank or our support team for assistance.

  • How do I receive my invoice or receipt?

    Invoices and receipts are sent to your registered email address or by letter.

  • Is there a surcharge for using a credit card?

    No, we do not charge additional fees for payments made using a credit card.

  • Do you offer credit terms for businesses?

    Yes, we provide credit terms for eligible business customers. Please contact our sales team to discuss account setup and terms.

  • Can I set up a direct debit or recurring payment?

    Yes, you can set up direct debit or recurring payments to ensure timely and hassle-free billing.

  • What payment methods do you accept?

    We accept a variety of payment methods, including credit/debit cards, direct bank transfers. For business customers, we also offer account-based billing.

  • I paid for my order by card, I received less fuel than I paid for due to the tank being full, what happens now?

    We have a couple of options available, we can refund your payment card, this takes 3-5 working days from the date we process your refund. Alternatively, we can leave the credit sat on your account and adjust this amount from the payment for your next order.